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Title:
The Solar Neighborhood. XI. The Trigonometric Parallax of SCR 1845-6357
Authors:
Deacon, Niall R.; Hambly, Nigel C.; Henry, Todd J.; Subasavage, John P.; Brown, Misty A.; Jao, Wei-Chun
Affiliation:
AA(Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK), AB(Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK), AC(Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30302-4106), AD(Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30302-4106), AE(Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30302-4106), AF(Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30302-4106)
Publication:
The Astronomical Journal, Volume 129, Issue 1, pp. 409-412. (AJ Homepage)
Publication Date:
01/2005
Origin:
UCP
Astronomy Keywords:
Galaxy: Solar Neighborhood, Stars: Distances, Stars: Late-Type, Stars: Low-Mass, Brown Dwarfs
DOI:
10.1086/426330
Bibliographic Code:
2005AJ....129..409D

Abstract

We present a trigonometric parallax for the nearby star SCR 1845-6357, an extremely red, high proper motion object discovered by Hambly et al. and identified via accurate photoelectric photometry and spectroscopy to be an M8.5 dwarf with a photometric parallax of 4.6+/-0.8 pc by Henry et al. Using methods similar to those described in Deacon & Hambly, we have derived a full astrometric solution from SuperCOSMOS scans of eight survey and nonsurvey Schmidt photographs held in the United Kingdom Schmidt Telescope Unit plate library. We calculate the trigonometric parallax to be π=282+/-23 mas, yielding a distance of 3.5+/-0.3 pc, which implies an absolute Ks magnitude of 10.79. This distance calculation places SCR 1845-6357 as the 16th closest stellar system to the Sun.

Associated Articles

Part 1     Part  2     Part  3     Part  4     Part  5     Part  6     Part  7     Part  8     Part  9     Part 10     Part 11     Part 12     Part 13     Part 14     Part 15     Part 16     Part 17     Part 18     Part 19     Part 20     Part 21     Part 22     Part 23    

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